Examples include: food found to contain botulinum toxin, food with undeclared allergens, a label mix-up on a lifesaving drug, or a defective artificialheartvalve.
例如：含有肉毒杆菌毒素的食品，含有未申报的过敏原的食物，抢救用药标签混乱，或有缺陷的人工心脏瓣膜。
2
Objective To determine the surgical point and technique of artificial mechanical valve replacement in children with heart valve diseases.
目的：探讨儿童心脏瓣膜病的人工机械瓣膜置换手术要点及方法。
3
Objective: To sum up clinical experience of 256 cases patients over 65-year-old with artificialheartvalve replacement surgery.